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5 Written Questions

5 Matching Questions

  1. disaccharide
  2. lipid
  3. RNA
  4. triacylglycerol
  5. hydrolysis
  1. a A chemical process that lyses, or splits, molecules by the addition of water; an essential process in digestion
  2. b One of a family of compounds, including fats, phospholipids, and steroids, that are insoluble in water
  3. c Three fatty acids linked to one glycerol molecule
  4. d A type of nucleic acid consisting of nucleotide monomers with a ribose sugar and the nitrogenous bases adenine (A), cytosine (C), guanine (G), and uracil (U); usually single-stranded; functions in protein synthesis and as the genome of some viruses
  5. e A double sugar, consisting of two monosaccharides joined by dehydration synthesis

5 Multiple Choice Questions

  1. a nitrogenous base that has a double-ring structure; one of the two general categories of nitrogenous bases found in DNA and RNA; either adenine or guanine
  2. A discrete unit of hereditary information consisting of a specific nucleotide sequence in DNA (or RNA, in some viruses)
  3. An extensively branched glucose storage polysaccharide found in the liver and muscle of animals; the animal equivalent of starch
  4. a type of lipid that consists of four carbon rings to which various functional groups are attached
  5. A structural polysaccharide of cell walls, consisting of glucose monomers joined by b-1, 4-glycosidic linkages

5 True/False Questions

  1. alpha helixThe form of native DNA, referring to its two adjacent polynucleotide strands wound into a spiral shape


  2. polypeptideThe building block of a nucleic acid, consisting of a five-carbon sugar covalently bonded to a nitrogenous bas and a phosphate group


  3. starchA storage polysaccharide in plants consisting entirely of glucose


  4. peptide bondthe covalent bond between two amino acid units, formed by condensation synthesis


  5. monosaccharideThe simplest carbohydrate, active alone or serving as a monomer for disaccharides and polysaccharides. Also known as simple sugars, the molecular formulas of monosaccharides are generally some multiple of CH20


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